Loss of ozone in the Arctic vortex for the winter of 1989

Details Loss of ozone in the Arctic vortex for the winter of 1989 Loss of ozone in the Arctic vortex for the winter of 1989

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990georl..17..561s&link_type=abstract

Geophysical Research Letters, Supplement (ISSN 0094-8276), vol. 17, March 1990, p. 561-564.

Computer Science

Sound

44

Arctic Regions, Atmospheric Chemistry, Ozone Depletion, Vortices, Atmospheric Sounding, Bromine Compounds, Chlorine Oxides, Diurnal Variations, Stratosphere, Winter

Scientific paper

Measurements of ClO (Brune et al., 1990) acquired during the Airborne Arctic Stratospheric Expedition are used to infer concentrations of reactive chlorine (ClO + 2 x Cl2O2). Observed fields of potential temperature and potential vorticity are used to extrapolate in situ data to larger regions of the vortex. Calculated values of the loss rate of O3, based on estimates of reactive chlorine and measurements of BrO (Toohey et al., 1990), suggest that the loss of O3 was abut 12 pct for levels of the atmosphere with potential temperatures between 440 and 470 K over the 39 day duration of the ER-2 flights into the polar vortex. Calculated loss rates agree with observed rates of removal of O3, although significant uncertainties exist for each.

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